Comparative analysis on the efficacy of A2/O and inverted A2/O process in removal of inorganic content from industrial wastewater

• Main Authors: Sundar, S. Siddharth, Jagadeesan, Aravind Kumar
• Format: Conference Proceeding
• Language: English
• Subjects: Anaerobic processes; Detergents; Effectiveness; Effluents; Industrial wastes; Operating costs; Phenols; Statistical analysis; Wastewater treatment
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0232870

The Anaerobic-Anoxic-Oxic (A2/O) process and the Inverted A2/O process are two methods for treating wastewater. The primary objective of this study is to evaluate and compare these two processes in order to improve the quality of effluents that are discharged by various chemical processing companies. Detailed instructions and materials: Under the identical circumstances of construction investment and operating cost, the objective of this study was to evaluate and contrast the effectiveness of two wastewater treatment procedures, namely Inverted A2/O and A2/O, in terms of the removal of total nitrogen (TN) and total phosphorus (TP). Evaluations were conducted on effluents originating from a variety of businesses, which included pesticides, fertilisers, hydrocarbons, phenols, detergents, oils, greases, medicines, and also included other substances. A total of fourteen test samples were obtained from the effluents of both the A2/O and control groups through the utilisation of the G Power software. We take the value of G power to be 0.8. After doing the simulation, we came to the conclusion that Inverted A2/O had a COD elimination efficacy of 95 percent, which was significantly higher than the A2/65 percent efficiencies. O’s As an alternative, the treatment plant that utilised the Inverted A2/O approach had an overall removal efficacy of 84 percent for COD, whereas the facility that utilised the A2/O process had a removal effectiveness of just 70 percent during the same time period. The statistical analysis conducted with SPSS resulted in a significance value of 0.04 (p < 0.024, showing statistical significance among the observations). Conclusion: When compared to A2/O, which had a cost that was 11.53 times higher, the Inverted A2/O reactor was 75.59 times more effective in eliminating COD from wastewater that was produced by industrial processes. It was the sole disadvantage that it consumed 62.82 kW more power than before (44.71 kW).